A critical edition of Maximus the Confessor's Ambigua ad Iohannem (CPG 7705.2) is a long-standing desideratum: a "desideratum" because of the clear flaws of the edition in the Patrologia Graeca 91, "long-standing" due to the length and the characteristic difficulty of the text. The Ambigua ad Iohannem are a collection of more than 60 chapters devoted to the explanation of a selection of passages from Gregory of Nazianzus. The present edition will contain roughly the first half of the text, i.e. the prologue to John and the first five ambigua, and will be based on those manuscripts which earlier Maximus editions have identified as presenting the best text.
Carl Laga is co-founder of the Corpus Christianorum Series Graeca and a specialist in the critical edition of texts by Maximus the Confessor. Together with Prof. dr. C. Steel he also edited Maximus' Quaestiones ad Thalassium (CCSG 7 and 22).